This is a wonderful thread, very, very informative. I visited the Sothebys pre sale as it was in New York, they had only one blade on display though I was unsure of which it was. The rest of the blades were locked up in glass containers within their shirasaya, and koshirae. If any of you want photos I can try to send them. Though I have to warn my photo of the one blade, is not the best.
All of the swords had no markers, no information about them. They put no real effort in the display I feel, meanwhile other artworks had through estimates, the painter, and the time period. All the swords had none, even the sword on display didn't have the smiths name. Very underwhelming